Probing the early universe with the millisecond pulsar

Details Probing the early universe with the millisecond pulsar Probing the early universe with the millisecond pulsar

Jun 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985natur.315..540c&link_type=abstract

Nature (ISSN 0028-0836), vol. 315, June 13, 1985, p. 540.

Astronomy and Astrophysics

Astronomy

3

Background Radiation, Big Bang Cosmology, Continuous Radiation, Pulsars, Universe, Black Holes (Astronomy), Broken Symmetry, Gravitational Waves, Unified Field Theory

Scientific paper

The use of the millisecond pulsar PSR 1937 + 21 to provide information about processes that occurred within the first millisecond of the Big Bang is discussed. The pulsar's rotation rate has remained stable to one part in 10 trillion over two years, providing an extraordinarily accurate clock which is of relevance to cosmology in that many processes in the early universe are expected to produce a background of gravitational waves which should induce a tiny jitter in the clock's regularity. The demonstration of this clock's stability is discussed, as is the way processes in the early universe produce gravitational waves that can be searched for. The processes that could be investigated in this way include the transformation of free quarks into nucleons, quantum effects during the inflationary phase, and spontaneous symmetry breaking resulting in the production of cosmic strings.

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